Mixed Quiz
Mixed Quiz
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 1 If an Ethernet destination address is 08-07-06-05-44-33, then this is a ______ address. A) Broadcast B) Unicast C) Multicast D) Any of the above 2 What is the hexadecimal equivalent of the Ethernet address 01011010 00010001 01010101 00011000 10101010 00001111? A) 5A-11-55-18-AA-0F B) 5A-88-AA-18-55-F0 C) 5A-81-BA-81-AA-0F D) 5A-18-5A-18-55-0F 3 Which of the following could not be an Ethernet source address? A) 8A-7B-6C-DE-10-00 B) 8B-32-21-21-4D-34 C) EE-AA-C1-23-45-32 D) 46-56-21-1A-DE-F4 4 What is the efficiency of 4B/5B block encoding? A) 60 percent B) 80 percent C) 20 percent D) 40 percent 5 Which of the following could not be an Ethernet unicast destination? A) 44-AA-C1-23-45-32 B) 46-56-21-1A-DE-F4 C) 48-32-21-21-4D-34 D) 43-7B-6C-DE-10-00 6 What is the efficiency of 8B/10B encoding? A) 80 percent B) 20 percent C) 40 percent D) 60 percent 7 A 10-station Ethernet LAN uses a _______-port bridge if the effective average data rate for each station is 2 Mbps. A) 10 B) 1 C) 2 D) 5 8 A _______-station Ethernet LAN uses a four-port bridge. Each station has an effective average data rate of 1.25 Mbps. A) 160 B) 80 C) 40 D) 32 9 An 80-station traditional Ethernet is divided into four collision domains. This means that a maximum of _______ stations contend for medium access at any one time. A) 20 B) 76 C) 80 D) 320 10 If an Ethernet destination address is 07-01-02-03-04-05, then this is a ______ address. A) Unicast B) Broadcast C) Multicast D) Any of the above 11 What is the efficiency of a frame in half-duplex Gigabit Ethernet carrying 46 bytes of data? A) 97 percent B) 70 percent C) 56 percent D) 12 percent 12 Which of the following could not be an Ethernet multicast destination? A) B7-7B-6C-DE-10-00 B) 7C-56-21-1A-DE-F4 C) 7B-AA-C1-23-45-32 D) 83-32-21-21-4D-34 13 Which of the following is a four-wire Gigabit Ethernet implementation? A) 1000Base-SX B) 1000Base-LX C) 1000Base-T D) 1000Base-CX 14 Forty stations are on an Ethernet LAN. A 10-port bridge segments the LAN. What is the effective average data rate of each station? A) 1.0 Mbps B) 2.5 Mbps C) 2.0 Mbps D) 5.0 Mbps

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